Installation, Operating & Maintenance Instructions

Series 64, DN 63-400 (I.D. 21/2" - 16")

VAT Vakuumventile AG, CH-9469 Haag, Switzerland

Tel +41 81 771 61 61 Fax +41 81 771 48 30 CH@vatvalve.com www.vatvalve.com

219034EM

2013-08-27

3/19

Contents:

1 Use of product........................................................................................................................................................... 4

1.1 Technical data .................................................................................................................................................... 4

2 Installation................................................................................................................................................................. 5

2.1 Installation into the system ................................................................................................................................. 5

2.2 Connections ....................................................................................................................................................... 5

2.2.1 Tightening torque for mounting screws on flanges ................................................................................... 5

2.2.2 Admissible forces ..................................................................................................................................... 6

2.2.3 Compressed air connection...................................................................................................................... 7

2.2.4 Actuator position (example)...................................................................................................................... 8

2.2.5 Compressed air connection by external solenoid (option) ........................................................................ 8

2.2.6 Electrical connection ................................................................................................................................ 9

3 Operation ................................................................................................................................................................ 11

3.1 Normal operation.............................................................................................................................................. 11

3.1.1 Adjustment of the intermediate position ................................................................................................. 11

3.2 Operation under increased temperature........................................................................................................... 12

3.3 Behavior in case of differential pressure........................................................................................................... 12

3.4 Behavior in case of compressed air failure....................................................................................................... 12

3.5 Behavior in case of power failure ..................................................................................................................... 12

4 Trouble shooting ..................................................................................................................................................... 13

5 Maintenance & repairs ............................................................................................................................................ 13

5.1 Preventive maintenance ................................................................................................................................... 14

5.1.1 Procedures............................................................................................................................................. 15

6 Drawing ................................................................................................................................................................... 17

7 Spare parts ............................................................................................................................................................. 18

8 Warranty ................................................................................................................................................................. 19